The town that developed the newest network - Den City. There, in "LINK VRAINS," the VR space managed by SOL Technology, people Duel day and night. Our hero, Fuji Yuusaku, is a cool high schooler who posses outstanding powers of observation.
It's not like it has free will, like a human.
Die haben schließlich keinen
eigenen Willen wie ein Mensch.
No tienen libre albedrío,
como los humanos.
Não é como se tivesse livre 
arbítrio, como um humano.